As a product manager, it is important to ensure that the data used to inform product decisions is accurate and reliable. If a third-party vendor is providing inaccurate data, there are several steps that can be taken to resolve the issue. First, it is important to identify the source of the problem. This may involve a review of the data provided by the vendor, as well as an assessment of any processes or systems that may be contributing to inaccuracies. Once the source of the problem has been identified, the next step is to work with the vendor to address the issue. This may involve requesting additional information or data to clarify discrepancies, as well as establishing clear expectations and performance metrics to ensure that accurate data is provided in the future. In some cases, it may be necessary to terminate the relationship with the vendor if they are unable or unwilling to provide accurate data. However, this should only be a last resort, and efforts should be made to work collaboratively with the vendor to resolve the issue. Ultimately, ensuring the accuracy of data is critical to making informed product decisions, and product managers should take a proactive approach to identifying and addressing any issues with third-party data providers.